<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>输入</title>
</head>

<body>
<h1>电路仿真实验</h1>
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<img src="https://img2.baidu.com/it/u=914990777,3155524029&amp;fm=15&amp;fmt=auto" width=209 height=130 />
<br>
<form name="login" action="/" method="post">
    电压U: <input type="number" name="U" /> V<br>
    电阻R: <input type="number" name="R" /> Ω<br>
    电阻P: <input type="number" name="P" /> Ω<br>
    <br>
    <input type="submit" value="开始仿真模拟" />
</form>
</body>
</html>